Prohlížení Acta Polytechnica CTU Proceedings. 2019, vol. 22 dle názvu

Zobrazují se záznamy 20-27 z 27

    • SHORT-TERM CORROSION RESPONSE OF METALS IN LIME MORTAR 

      Autor: Bauerová, Pavla; Prošek, Zdeněk; Krejsová, Jitka; Keppert, Martin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Even though the corrosion of steel in concrete is very well described, the corrosion processes in lime environment studied very rarely. This environment is obviously also basic and its pH decreases in time, but the obtained ...

    • THE FATIGUE BEHAVIOUR OF GFRP BARS - EXPERIMENTAL STUDY 

      Autor: Januš, Ondřej; Girgle, František; Rozsypalová, Iva; Kostiha, Vojtěch; Bodnárová, Lenka; Štěpánek, Petr; Prokeš, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The paper describes an experimental program for studying the fatigue performance of GFRP bars, which has been initiated by the authors. Two different test configurations were used to assess the fatigue behaviour. The bare ...

    • THE INFLUENCE OF A SHRINKAGE REDUCING ADMIXTURE ON THE LONG-TERM DEVELOPMENT OF DYNAMIC PROPERTIES IN ALKALI-ACTIVATED SLAG 

      Autor: Alexa, Martin; Kocáb, Dalibor; Kucharczyková, Barbara; Kotrla, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The paper investigates the way a shrinkage-reducing admixture affects the long-term development of dynamic properties in mortars made with alkali-activated slag (AAS). Two AAS mortars were tested - one contained a ...

    • THE LIGHTWEIGHT TEXTILE REINFORCED CONCRETE FOR THIN-WALLED STRUCTURES 

      Autor: Cibulka, Tereza; Musil, Luboš; Vodička, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The article deals with lightweight concrete with non-conventional reinforcement and its application in thin-walled structures. As part of experimental research, several sets of thin-walled slab and complementary specimen ...

    • THE PHYSICAL PROPERTIES OF CEMENTITIOUS COMPOSITES FOR APPLICATIONS IN A HIGH-TEMPERATURE ENERGY STORAGE DEVICE 

      Autor: Šťastník, Stanislav; Bodnárová, Lenka
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The article was focused on experimental verification of the identification of thermal characteristics of high-performance cementitious composites at elevated temperatures. The purpose of the research was to verify the ...

    • THE USE OF LIGHTWEIGHT AGGREGATE IN PREPARATION OF THERMAL INSULATION LIME-BASED RENDERS 

      Autor: Pokorný, Jaroslav; Pavlíková, Milena; Pavlík, Zbyšek
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Lime-based renders are common part of historical or older buildings that don’t always provide a comfortable inside climate due to the problems with high thermal losses. Thermal insulation renders may possibly retrofit or ...

    • USING SECONDARY RAW MATERIALS IN LIGHTWEIGHT OPEN-STRUCTURE CONCRETE WITH GOOD UTILITY PROPERTIES 

      Autor: Sedlmajer, Martin; Zach, Jiří; Bubeník, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The paper presents the results of research in lightweight concrete with open structure made using a lightweight porous foam-glass aggregate produced from recycled glass powder. The goal was to develop lightweight concrete. ...

    • VERIFICATION OF THE BASIC PROPERTIES OF RECYCLED AND NATURAL AGGREGATES 

      Autor: Mikulica, Karel; Hájková, Iveta
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      In the future, it is planned to use up to 50% of construction and demolition waste (C&DW) for the production of new building structures. This leads us to think about how we can use recycled concrete aggregate (RCA) as ...